(19)
(11) EP 0 358 690 A1

(12)

(43) Date of publication:
21.03.1990 Bulletin 1990/12

(21) Application number: 88904323.0

(22) Date of filing: 22.04.1988
(51) International Patent Classification (IPC): 
G06F 15/ 16( . )
G06F 9/ 52( . )
G06F 13/ 42( . )
G06F 9/ 46( . )
G06F 13/ 366( . )
G06F 15/ 177( . )
(86) International application number:
PCT/US1988/001359
(87) International publication number:
WO 1988/008571 (03.11.1988 Gazette 1988/24)
(84) Designated Contracting States:
CH DE FR GB IT LI NL SE

(30) Priority: 01.05.1987 US 19870044486

(71) Applicant: DIGITAL EQUIPMENT CORPORATION
Maynard, MA 01754 (US)

(72) Inventors:
  • GILLETT, Richard, B., Jr.
    Westford, MA 01886 (US)
  • WIILIAMS, Douglas, D.
    Pepperell, MA 01463 (US)

(74) Representative: Goodman, Christopher, et al 
Eric Potter & Clarkson St. Mary's Court St. Mary's Gate
Nottingham NG1 1LE
Nottingham NG1 1LE (GB)

   


(54) METHOD AND APPARATUS FOR INITIATING TRANSACTIONS ON A MULTIPROCESSOR COMPUTER SYSTEM EMPLOYING MULTIPLE LOCK INDICATIONS